例
000001 IDENTIFICATION DIVISION.
000002 PROGRAM-ID. C3395.
000003 ENVIRONMENT DIVISION.
000004 INPUT-OUTPUT SECTION.
000005 FILE-CONTROL.
000006 SELECT FILE-1 ASSIGN TO SYS001
000007 ORGANIZATION IS INDEXED
000008 ACCESS MODE IS SEQUENTIAL
000009 RECORD KEY IS KEY-REC.
000010 DATA DIVISION.
000011 FILE SECTION.
000012 FD FILE-1.
000013 01 REC-1.
000014 02 KEY-REC PIC XX.
000015 02 FILLER PIC X(78).
000016 PROCEDURE DIVISION.
000017 READ FILE-1 PREVIOUS.
000018 END PROGRAM C3395.
C3395.cob (17) : JMN3395I-S READ文のPREVIOUSは，動的呼出しの索引ファイルまたは相対ファイル以外に指定できません．